operator vs manipulator

operator and manipulator both are nouns.

Word	Noun	Adjective	Verb	Adverb
operator	Yes	No	No	No
manipulator	Yes	No	No	No

As nouns, operator and manipulator are synonyms defined as:

operator and manipulator: an agent that operates some apparatus or machine

operator (noun)	manipulator (noun)
an agent that operates some apparatus or machine	an agent that operates some apparatus or machine
someone who owns or operates a business	a person who handles things manually
a shrewd or unscrupulous person who knows how to circumvent difficulties
a speculator who trades aggressively on stock or commodity markets
(mathematics) a symbol or function representing a mathematical operation